OHT INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G02F DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS 1132

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6921892 Electrostatic imagerDec 18, 02Jul 26, 05[G02F]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7495452 Wire harness checker and wire harness checking methodExpiredJun 01, 04Feb 24, 09[G01R]
7332914 Conductor inspection apparatus and conductor inspection methodExpiredFeb 27, 04Feb 19, 08[G01R]
7239127 Apparatus and method for inspecting electronic circuitsExpiredAug 08, 03Jul 03, 07[G01R]
2007/0073,512 Conductior position inspection apparatus and conductor position inspection methodAbandonedFeb 27, 04Mar 29, 07[G06F, G01C]
7173445 Sensor for inspection instrument and inspection instrumentExpiredAug 27, 02Feb 06, 07[G01R]
7138805 Device and method for inspectionExpiredJun 13, 01Nov 21, 06[G01R]
7088107 Circuit pattern inspection instrument and pattern inspection methodExpiredNov 28, 03Aug 08, 06[G01R]
7049826 Inspection device and inspection methodExpiredSep 10, 01May 23, 06[G01R]
7026870 Low-noise active RC signal processing circuitExpiredMar 27, 02Apr 11, 06[H03F]
2006/0043,153 Circuit pattern inspection device and circuit pattern inspection methodAbandonedNov 28, 03Mar 02, 06[B23Q]
6995566 Circuit pattern inspection apparatus, circuit pattern inspection method, and recording mediumExpiredMay 23, 02Feb 07, 06[G01R]
6992493 Device and method for substrate displacement detectionExpiredMay 23, 02Jan 31, 06[G01R]
6972573 Device and method for inspecting circuit boardExpiredJun 13, 01Dec 06, 05[G01R]
6967498 Apparatus and method for inspecting electronic circuitsExpiredAug 08, 03Nov 22, 05[G01R]
6958619 Inspecting apparatus and inspecting method for circuit boardExpiredNov 15, 01Oct 25, 05[G01R]
6952104 Inspection method and apparatus for testing fine pitch tracesExpiredJun 16, 03Oct 04, 05[G01R, H01H]
6947853 Apparatus and method for inspecting electrical continuity of circuit board, jig for use therein, and recording medium thereonExpiredSep 22, 04Sep 20, 05[G01R]
6943559 Circuit pattern inspection device, circuit pattern inspection method, and recording mediumExpiredJun 06, 02Sep 13, 05[G01R, H01H]
6933740 Electronic circuit inspection sensor and inspection system using sameExpiredAug 04, 03Aug 23, 05[G01R]
6894515 Inspection unit and method of manufacturing substrateExpiredSep 25, 01May 17, 05[G01R]

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